An unplanned roof fall occurred in the 12 Left panel in x-cut 2-1 at S/S 1958. The fall measured approx. 40'L, 20'W, and an unknown height. Over the next few shifts, the fall continued through the x-cut 2-3 and across #1 entry through the cut through into the adjacent #5 entry of the 11 Left panel. The area was bolted with 4' resin bolts. Exact cause of the fall is unknown.